1 62 



with tliis species, described without locality in the quoted works. The brown band is onlj faintly 

 visible in one specimen. Unfortunately the specimens are dead, partly worn shells, so it cannot 

 be made out it" they have really lived at the great depth of 522 M. 



[6. Cerithium aduncum Gould. 



Boston Soc. Nat. Hist Vol, III, [849, p. 119. 

 Rl nch. Ie. Vol. XV, Cerithium, tig. 56 [dorsuosum) fig. 57 (aduncum). 



TRYON. Man. of Conch. Vol. IX, p. [39, PI. 26, fig. 96, 97. 

 KOBEl 1. Martini-Chemn. Conch. Cab. Ed. II, Vol. I. Cerithium, p. 103, PI. 20, fig. 9, io. 



50. Bay of Badjo, West coast of Flores. Up to 40 M. Mud, sand and shells. 11 Spec. 



According to Reeve, the only difference between C. aduncum and dorsuosum should be, 

 that in the former the outer lip is ridged, bein^ smooth in dorsuosum. Now, as the very old 

 specimens from the above locality have the outer lip smooth, the younger ones have it ridged, 

 with everv grade between them, I think they ought to be united, as for the lirst time has been 

 done by Tryon, afterwards by Kobelt on Tryon's authority; the "Siboga'-specimens are less 

 humped, than the figure of aduncum, the colour also agrees with Reeve's dorsuosum, but in 

 size and in sliape of upper whorls, they come nearer to his aduncum. 



17. Cerithium zebrum Kiener. 



KlEN ER. Coq. Viv. Vol. IV, Cerithium, p. 71, PI. 25, fig. 4. 

 REEVE. Conch. Ie. Vol. XV. Cerithium, fig. 136? 



YON. Man. of Conch. Vol. IX, p. 138, PI. 26, fig. 78—82. 

 KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium, p. 220, PI. 39, fig. 7 — 10. 



Stat. 215. North point of Kabia-island. Reef. 1 Spec. 

 Reeve's locality "Gallapagos-Islands" makes it doubtfnl, if he had in view the true C. zebrum. 



iS. Cerithium pauxillum A. Adams. 



A. ADAMS. Proc. Zool. Soc. Lond. 1854, p. 86. 



REEVE. Conch. Ie. Vul. XV, Cerithium, fig. 144. 



TRYON. Man. of Conch. Vol. IX, p. 141, PI. 34, fig. 95. 



KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium. p. 228, PI. 40, fig. 8. 



Stat. 144. Laiwui, North coast of Obi Major. 23 M. Coral-bottom and Lithothamnion. 3 Spec. 

 Stat. 2S5. South coast of Timor. 34 M. Limit between mud and coral. 19 Spec. 



Though the specimens have a fourth row of nodules on each whorl, in contradiction to 

 the original description of Adams, who says "triseriatim granosis", they belong no doubt to the 

 species under consideration, as they have been compared with the types in the British Museum 

 by Mr. E. A. Smith; the shell has a tendency t" be banded with fulvous above the suture, 

 the fourth series of nodules is smaller and so may have been overlooked, moreover I see a 

 • rmediate lirae especially on the last whorl. There is a single varix on the left side of 

 the bodywhorl and another bordering the aperture externally; the whole shell is covered with 

 l ae, only visible under a strong lens. 



54 



